기능

• Z mark metal racket bolt (SB-E2) equivalent certified product.
• Stabilization of strength was achieved by forming the blades and bolts in one piece by pressing instead of welding.
• Since the blade part is short, the blade part does not interfere even if the beam becomes thick.
• Because of its compact shape, it has little interference with wood, and can be used for beams up to 105~150 mm without boring.
• 255 mm is secured from the core of the hole to the tip of the bolt.